648 



Report of the State Geologist. 



In. Ft. 

 1 1 = 10 



Feet 

 3 = 43 



F 5 . Dark blue, fine grained, compact limestone with small spark- 

 ling crystals of calcite. Fossiliferous. 



F >] . Two feet covered, then one foot of dark blue, fine grained 

 limestone with sparkling crystals of calcite. Fossiliferous. 



F 7 . Somewhat crystalline, blue fossiliferous layer. Base of ln f e * 

 Trenton limestone. 



F H . Compact, fine grained, bluish-grey layer with glittering 

 surface on fresh fracture. Fairly abundant Trenton fossils. 



F 9 . Bluish -black, fine grained massive layer, weathering bluish- 

 grey with yellowish fucoid-like markings on vertical and horizontal faces 

 Well preserved specimens of Hajmesquina alternata are fairly abundant. 



F w . Uneven, dark, compact, fossiliferous layer -with crystalline 

 lenticles ; the fossils mostly in the lenticles. 



Feel 



1 = 44 



Ft. in Ft. 

 •i 6-47 



Feet 

 1 = 48 



F n . Dark blue, finegrained layer with crystalline fossiliferous ^ 



Ft. in. Ft. 

 = 4'J 



lenticles which, by weathering darker and yellowish, give a mottled appearance 

 to the surface. 



F lis . Greyish-blue, crystalline, fossiliferous layer Inc 4 hes 



F 13 . Dark blue, finegrained, with crystalline lenticles, and ^ u J = f$' 

 weathering similar to No. 11. Fossiliferous. 



F u . Medium light colored, weathering with yellowish streaks as ^% 

 in No. 11. Abounds in Trenton fossils. 



F 15 . Thin, irregular, dark blue, fine grained layers with inter- 2^=80 

 calated black, carbonaceous shale. Contains great numbers of fossils, 

 especially Monticulipora (Prasopord) lycoperdon (Say), and Trinuclms con- 

 ceni/ricus (Eaton), Hall. 



F iG . Utica slate exposed in creek bed and in contact with the 270=^0 

 Trenton below. Thin, even layers of black, carbonaceous, calcareous shale ; 

 above this, covered to first creek east of Morphy creek. Difference in altitude 

 between these two points, 270 feet. Utica slate. 



F 17 . In the first creek east of Morphy creek, at a point one and so^oo 

 four-tenths miles almost due south of the Morphy quarry, are exposed even 

 layers of very Mack, strongly calcareous, slaty shale containing seams filled 

 with calcite These thin layers are occasionally interrupted by thicker, com- 

 pact, very fine-grained layers with conchoidal fracture. The latter resemble 

 the hard, fine-grained layers of the upper Trenton in No. 15. The dip is 

 uniformly southerly. 



F*. Covered Jl et m 



